Simplifying 1.5x + -3y = 6 Solving 1.5x + -3y = 6 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3y' to each side of the equation. 1.5x + -3y + 3y = 6 + 3y Combine like terms: -3y + 3y = 0 1.5x + 0 = 6 + 3y 1.5x = 6 + 3y Divide each side by '1.5'. x = 4 + 2y Simplifying x = 4 + 2y